Beer-pumping or air-pressure apparatus



(No Model.)

T. DOUGHERTY.

BEER PUMPING OR AIR PRESSURE APRARAIUS.

Patented Agr. 5, 1887.

WITNESSES: 92 y%%.

N. PETERQ. Phowumo m hen Washmgium D. c.

UNITED STATES PATENT OFFICE.

TIBERIAS DOUGHERTY, OF PHILADELPHIA, PENNSYLVANIA.

BEER-PUMPING OR AIR-PRESSURE APPARATUS.

SPECIFICATION forming part of Letters Patent No. 360,422, dated April 5,1887.

Application filed March 29, 1886.

To all whom it may concern:

Be it known that I, TIBERIAS DOUGHERTY, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Beer-Pumping or Air-Pressure Apparatus, which improvement is fully set forth in thefollowing specification and accompanying drawings, in which- Figures 1and 2 represent longitudinal sections of an air-pressure apparatusembodying my invention. Fig. 3 represents a section in line a: at, Fig.1.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention consists of an air-pressure-apparatus for a keg, 85c,embodying an elastic ball, a barrel, and air-inlet and valve and anair-outlet and valve, whereby air may be readily forced into the barrel.

It also consists of means for tightly securing the ball to its socket orsupport.

It further consists of the construction of the apparatus, whereby thebarrel-vent may be opened by the act of securing said apparatus to saidvent.

Referring to the drawings, A represents a barrel or tube, and Brepresents a rubber or elastic ball whichis connected with the barreland communicates therewith, said ball resting in a cup or socket, C,which is secured to the barrel and held thereon by a tubular conicalplug, D, the end of which within the ball being formed with a flange, E,the plug passing through the neck B of the ball and the neck 0' of thesocket and entering the bore of the barrel, to which latter it isscrewed, the flange E compressing the neck of the ball against the neckof the socket, so that the ball is firmly connected with the barrel anda tight joint produced, itbeing noticed that the plug 1) forms a passagebetween the ball and barrel.

The barrel has a branch, F, for the inlet of air, the same having aninwardly-closing valve, G, and the end of the barrel opposite to theball'is open, forming the outlet of the barrel, a valve, H, beinglocated within the barrel near said end and opening inwardly, and retained therein by arms or shoulders J in the bore of the barrel.

K represents a vent, which is driven into a Serial No. 197,003. (Nomodel.)

keg, barrel, 870., and having within the same a tubular plug, L, actingas a valve, which is screwed to a contracted portion, K, of the bore ofsaid vent, the threads of said plug and portion being left-handed.

The outlet end of the barrel A is exteriorly .threaded, so as to bescrewed to the head end of the vent, the threads of said barrel and ventbeing right-handed.

The plug L has a head, M, of angular form with grooved sides, and isadapted to enter the bore of the barrel at the outlet end thereof, theinner wall of said bore being angular, as seen in Fig. 3, and adapted tofreely embrace the head M and engage therewith, as will be hereinafterstated. The plug L has in its side an opening, N, which, when the saidplug is in its normal position, (shown in Fig. 2,) is within the portionK of the bore, and is thereby closed, thus closing the vents. 111 thisposition of parts the vent is driven into the keg, &c., the head M beingbelow or within the head end of the vent, so as not to be struck. Thenit is desired to force the air into the keg, &c., the barrel A isscrewed to the vent, and as the discharge end of the barrel engages withthe head M the rotation of the barrel rotat-es or unscrews the plug L,the latter entering the barrel and moving the opening N from the portionK, thus uncovering said opening and placing the barrel in communicationwith the vent, and consequently with the keg, 850. The ball is nowcompressed and then allowed to expand as many times as desired, and airenters the ball and is forcibly expelled therefrom through the barrelinto the head end of the vent and enters the openingN of the plug L, bywhich it is directed through said plug and the vent into the keg, 85c.lVhen sufficient pressure is obtained in the latter, the barrel Aremains connected with the vent for further use of the device, or may beunscrewed, the effect of which latter is to rotate the plug L and returnit to its normal position, thus covering the opening Nand closing thevent, whereby the escape of air into the keg, &e., is prevented.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An elastic ball, 13, in combination with cup 0, tubular plug: D, thebarrel A, with the sorew-plug L, having angular head M, and I0 branch F,the valve G, and valve H, retained opening N, all of said parts beingarranged in the barrel-bore by shoulders J, all substanand operatedsubstantially as and for the purtially as and for the purpose set forth.pose set forth.

2. The barrel A, havinan eXteriorly- Y 4 T threaded portion, the latterportion having TIBERIAS DOUGHERTX .an angular interior, in combinationwith the XVitnesses:

vent K, having a threaded contracted portion, J. A. W'IEDERsI-IEIM, K,and an interiorly-throaded head portion, A. P. GRANT.

